#405BCA#405BCA

#405BCA is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.5% C 0.175 H 269.1°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#405BCA
RGB	rgb(64, 91, 202)
HSL	hsl(228, 57%, 52%)
HSV	hsv(228, 68%, 79%)
CMYK	cmyk(68.3%, 55%, 0%, 20.8%)
CIE-LAB	lab(42.51, 26.78, -60.75)
CIE-LCH	lch(42.51, 66.39, 293.79°)
OKLab	oklab(51.45% -0.0028 -0.1748)
OKLCH	oklch(51.45% 0.175 269.1)
XYZ	xyz(16.5125, 12.8348, 57.4728)
Luminance	0.1284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#405BCA #CAAF40

analogous

#40A0CA #405BCA #6A40CA

triadic

#405BCA #CA405B #5BCA40

tetradic

#405BCA #CA40A0 #CAAF40 #40CA6A

square

#405BCA #CA40A0 #CAAF40 #40CA6A

split-complementary

#405BCA #CA6A40 #A0CA40

monochromatic

#1F2F70 #2C43A0 #405BCA #7084D7 #A0ADE5

Accessibility & contrast

On white

5.89

#405BCA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#405BCA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #405BCA

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##405BCA	#FFFFFF	#000000	##FFFFFF
##405BCA	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCE

Deuteranopia (green-blind)

#005EC8

Tritanopia (blue-blind)

#007689

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #405bca;
/* rgb */ color: rgb(64, 91, 202);
/* oklch */ color: oklch(51.5% 0.175 269.1);

Tailwind

colors: {
  custom: {
    50: '#8589db',
    500: '#405bca',
    950: '#000000',
  },
}

SCSS

$custom: #405bca;
$custom-light: #8589db;
$custom-dark: #000000;

JSON

{
  "hex": "#405bca",
  "rgb": {
    "r": 64,
    "g": 91,
    "b": 202
  },
  "hsl": {
    "h": 228.261,
    "s": 56.557,
    "l": 52.157
  },
  "oklch": {
    "l": 0.51451,
    "c": 0.17482,
    "h": 269.1
  },
  "luminance": 0.12836
}

Semantic roles & 50–950 ramp

primary

#405BCA

secondary

#D1C595

accent

#C248E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #405BCA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →